Can you still even get this antenna? The genuine one ?This is what the CWB27 is for, below CB to the top end of 10m with no tuning. It’s got more than just a loading coil in the base.
Can you still even get this antenna? The genuine one ?This is what the CWB27 is for, below CB to the top end of 10m with no tuning. It’s got more than just a loading coil in the base.
I have been trying for at least a year longer than this thread. There is a scammer in HK who will sell you a bunch, but not deliver on your wired bank deposit. So beware.Can you still even get this antenna? The genuine one ?
I am trying to get all my antenna's SWR set up for my "Great Antenna Test of 2025" video... I wanted to put this in the test....Ah, OK.
So the extra 6" didn't lower the resonance point enough to solve the issue. Since the spring is only 2 1/4", that's not going to solve the issue on it's own.
Easy answer #1:
Switch to the NMO30 coil.
Easy answer #2:
Cut your losses on the NMO-34 coil and just buy the NMO-27 coil. Whip length for that is probably closer to 47 inches, if I recall correctly.
Hard answer #1:
Find a 75" long whip that'll fit the NMO mount cone adapter. (I said it was hard….)
I got three off eBay over the years and they still show up now and then.Can you still even get this antenna? The genuine one ?
ThanksI got three off eBay over the years and they still show up now and then.
thank you.... I tried to order from Arcadian.. but you have to buy a minimum of 9 units..... ...I just need one.That looks correct. I'm wary of random Amazon sellers, though.
$58 at Digikey:
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www.digikey.com
$59 at Arcadian:
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NMO27B: Low Band Mid Band Omnidirectional Whip Antenna
The NMO27B is a black, base loaded 1/4 wave antenna for 27-30 MHz low band radios. Works well with CB / citizens band units. This antenna includes the NMO base and the whip. Overall height of the antenna is approximately 52 inches, and offers unity / 2 dBi gain. This antenna requires an NMO...www.arcantenna.com
I took some #14 AWG copper and wrapped it around the antenna with 6 inches past the top..... it did bring down the SWR ...but not enough???
will a spring fix this?..... any other fixes?
I also put my ohm meter to the center pin and the whip... and got all Zero's..... so the NMO is contacting the magnetic base just fine.
I think I'm out $213 bucks... and still need to buy my friend a Larsen NMO27 for at least another $100 bucks.
I know people have been talking about this great set up for a year now..... but I thought someone had actually done it and made it work??? perhaps it was all in theory and I thought it was a fact.
no thanks, I'll stick to proven products from now on....... this group has always been fantastic in helping me with any of my projects.... if the guys here tell me something... I generally swear by it.....There’s experiments to try to alter capacitance and lower SWR. Though I’d now use an NMO30.
View attachment 187506
thank you.... I tried to order from Arcadian.. but you have to buy a minimum of 9 units..... ...I just need one.
on Digikey it only say's pulse... most of the ones I look at say Larsen on the top, on one side and NMO 27 on the top of the other side
again thank you
Isn't this (the Larsen) almost 20 inches shorter than the Stryker? I'm not totally sure I'd look for "as good" but you never know. Good Luck! Let us know how it turns out. Might be better for use on the Jeep being a little shorter anyway.I'm just hoping it will work as good as the Stryker SR-A10.
Thanks this is what I needed to see. Is the 64" uncut and pulled out the end or ??Here is the SWR curve of my Larsen NMO30 coil, 64" whip, and mag mount mounted on the roof of my truck cab:
View attachment 187515
I'm not using a spring, but if I add one it just shifts the curve to the left a bit. I'm going to be installing a permanent hole-mount NMO base soon, so maybe that'll shift the curve down a bit.
It's uncut and pushed all the way into the top of the coil.Thanks this is what I needed to see. Is the 64" uncut and pulled out the end or ??
Thank you.It's uncut and pushed all the way into the top of the coil.
I'd need to not only try that but cut it open too to see what's happening in there. Expensive mission. I'm always cautious when things seem like they're too good to be true.When is someone going to get and test a President Colorado wide band antenna? It’s 54” tall and covers about 21 to 30MHz, might be a replacement for the CWB27. Any nice guys out there wanna volunteer?
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President Electronics Colorado 800 WB 21-30 MHz HF Antenna with UHF Connector
Check out this President COLORADO 800 at www.WalcottRadio.comwww.walcottradio.com
not me.... I just spent another $200 bucks buying a couple things to finish the Jeep ( NMO27 for one)When is someone going to get and test a President Colorado wide band antenna? It’s 54” tall and covers about 21 to 30MHz, might be a replacement for the CWB27. Any nice guys out there wanna volunteer?
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President Electronics Colorado 800 WB 21-30 MHz HF Antenna with UHF Connector
Check out this President COLORADO 800 at www.WalcottRadio.comwww.walcottradio.com
As you can imagine, that ad is a complete lie. I think the C27 can hold its own among similar size antennas but not a fulll size 1/4 wave.not me.... I just spent another $200 bucks buying a couple things to finish the Jeep ( NMO27 for one)
I'd like to someday try a laird antenna c27 as they say it's as good as a 102" Stainless Steel Whip ( Yeah Right)
read the description the 53 inch tall antenna that works like a 102" whip